The ESPRESSO detector can be operated with slow or fast read-out and with four different binnings: 1x1, 2x1, 4x2, and 8x4. Observations in high resolution (HR) use either fast read-out and 1x1 binning or slow read-out and 2x1 binning. Ultra high-resolution (UHR) observations are always executed with fast read-out and 1x1 binning whereas for medium resolution (MR) fast read-out and 4x2 or 8x4 binning is used.
ESPRESSO has two chips, one for the BLUE and one for the RED arm. Each chip has 16 read-out ports. QC parameters are determined per read-out port which leads to 16 different values for each QC parameter per chip. The HC plots show in separate sub plots the average (AVG) of all 16 values per detector, the RMS of these values, and ALL 16 individual values (in one sub plot).
There are also plots showing the values for each read-out port in detail. The labels there come in the form <DET>_<X>_<Y> with <DET> being the chip (BLUE or RED), <X> the x positions of the read-out on the chip (0, 1, to 7), and <Y> the y position (0 or 1).